Bump System.ValueTuple from 4.4.0 to 4.5.0

Bumps [System.ValueTuple](https://github.com/dotnet/corefx) from 4.4.0 to 4.5.0.
- [Release notes](https://github.com/dotnet/corefx/releases)
- [Commits](https://github.com/dotnet/corefx/commits)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot-support

src/Abioc/Abioc.csproj

@@ -25,7 +25,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="2.3.2" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.0.2" PrivateAssets="All" />
-    <PackageReference Include="System.ValueTuple" Version="4.4.0" />
+    <PackageReference Include="System.ValueTuple" Version="4.5.0" />
   </ItemGroup>
 
   <ItemGroup>